Article of headwear



FIG. 1 is a front and left side view in perspective of an article of headwear showing my new design;

FIG. 2 is a rear and right side view in perspective thereof;

FIG. 3 is a top view thereof;

FIG. 4 is a bottom view thereof;

FIG. 5 is a left side view thereof;

FIG. 6 is a right side view thereof;

FIG. 7 is a front view thereof; and,

FIG. 8 is a rear view thereof.

The broken lines in the drawings illustrate portions of the article of headwear which form no part of the claimed design. 

CLAIM The ornamental design for an article of headwear, as shown and described. 